Answer:
A classic example of a closed-class society without social mobility is the Hindu society under the caste system. ... In a closed-class society there is pronounced tendencies toward radicalism and revolution. A closed-class society is one in which position is fixed at birth and cannot be changed by individual achievement.
Explanation:
Can you translate to English please
C.) They tell about everyday life in the country.
The acronym wyd in English means "What are you doing?". So you just need to know how to say the same thing in Chinese. I don't know if that's what you mean.